An AWPR/B-T spokesperson said: “The change to the speed limit is necessary to ensure workers can construct the new road safely while road users continue to use the A90.

“We strongly advise road users to plan their routes before they set off on their journey.

“As with any changes of this kind, we recommend that all drivers using these routes apply more caution than usual to familiarise themselves with the new layout.”

Average speed cameras are currently in operation on the A90 stretch of road between Blackdog and Balmedie to enhance safety for both construction workers and road users whilst the construction work is underway.